28 



9. "Merchantable Length" refers to the total length of stem that 

 might possibly be used, if taken to the lowest diameter which can be 

 utilized in any market. 



10. When analysis is made for accurate results, the tree should be. 

 cut into sections not longer than four feet. 



(a) The tree must be cut off as close to tlie ground as possible. 



(b) The next cut must be at exactly two feet above stump cut. 



(c) The last two cuts must be made two feet apart. 



(d) In computing volume the portion of the tree above the last cut 

 must be considered as a cone. 



11. The name of the pei'son making the analysis must be on each 

 sheet. 



42. 



Tree ^'olume. 



This sheet is to be used for recording the final figures in working 

 up tree volume from data on Form 41. 



1. Date should be the day upon which the calculations are made. 



2. "Species," "No. of Tree," "Type," and "Locality," should corres- 

 pond with the entries on Form 41, from which the necessary data are 

 taken. 



3. "Type" again refers 1o type of trees. 



4. "Locality" refers to quality of locality. 



5. The first computation will be to calculate the volume of the 

 whole tree, including bark ( branch wood may or may not have been 

 considered in the analysis). 



(a) The stump will be regarded as a cylinder. 



(b) Each log shall be regarded as a truncate paraboloid the vol- 

 ume of which equals one-half the sum of the sectional area of top plus 

 the sectional area of the base, multiplied bv the length. Ivepresented 



S+s 



in formula V== x L 



2 



(c) What is left above the last log is considered as a cone. 



(). The second computation is to find the volume of the whole tree 

 without bark. 



7. The next computations are for the volume of the tree, without 

 bark, at specific ages, as seventy, sixty, fifty, forty years, and so on. 



8. In the case of special analysis as under item 10, Form 41, the 

 second cross-section is regarded as the sectional area in the middle 

 of a four foot truncated ])araboloid, the volume of which is found by 

 multiplying the sectional area in the middle by the length, which in 

 each instance in this case is 4. IJefer to ^ ol. Ill Schlich's Manual of 

 Forestry, 3rd Edition, page 30. 



43. 



Application for Examination for Admission to the State Forest 



Academy. 



This form must be used by all who desire to take the examinations. 

 They may be had by writing to the Department. 



